Description of device
41
06/10 MN03402004Z-DE/EN
Setting the tripping CLASS
Figure 5:
a
Tripping class setting dial
Motor-protective circuit-breaker PKE is suitable for both
normal starting and heavy starting duty. The tripping
behavior of the overload trip is defined by the set tripping
class.
• CLASS 5 = simple starting,
• CLASS 10 = normal starting,
• CLASS 15 to CLASS 20 = heavy to very heavy starting
For normal and overload operation, switchgear is designed
for CLASS 10. To prevent overloading switchgear and cables
during heavy starting duty, rated operational current I
eCLASS
of switchgear and cables must be overdimensioned
according to the tripping class set on the PKE.
a
h
The tripping characteristics are obtained through rated
motor current and tripping class,
Summary of Contents for PKE12 Series
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